Home / 10,206.20-15,309.30-3,281.40

Finding the Fourth Proportional to 10,206.20, 15,309.30 and 3,281.40

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Solution

The fourth proportional to 10,206.20, 15,309.30 and 3,281.40 is: 4,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.20 : 15,309.30 = 3,281.40 : x
  2. Step 2: Convert to fraction form
    10,206.20/15,309.30 = 3,281.40/x
  3. Step 3: Cross multiply
    10,206.20x = 15,309.30 × 3,281.40
  4. Step 4: Simplify right side
    10,206.20x = 50,235,937.02
  5. Step 5: Solve for x
    x = 50,235,937.02/10,206.20
  6. Step 6: Final answer
    x = 4,922.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.